Designing Analog Computer to Solve x' + 9x = 3

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The discussion focuses on designing an analog computer to solve the differential equation x' + 9x = 3 using two summing amplifiers and an integrator. The user seeks confirmation on their circuit design, which involves differentiating the equation and integrating the result. Key components include the use of a 3V offset and feedback mechanisms to achieve the desired output. The circuit implementation is based on a referenced PDF document that outlines the necessary analog techniques.

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I am instructed to design an analog computer to solve the following equation using 2 summing amplifiers and a integrator. I have attached a image of what I've done. I am seeking confirmation of my circuit or hint as to how to proceed.

Thanks in advance!

eqn: x' + 9x = 3
 

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Can you describe your circuit some for us? Why are you adding in 3V before doing the differentiation? What is the overall feedback for? Is V1 meant to be both x and the 3V offset?
 
As I understand the process: solve for the highest derivative, so
U1: x' = -(-9x + 3)
U2: -x = Integration of x'
U3: x = inversion of -x feedback to U1

This was my implementation, I have also included a link to a pdf file I was using as reference [http://dcoward.best.vwh.net/analog/Aug00S&V.pdf]

Once again, Thanks
 
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